(n.) A broad board painted black, or any black surface on which writing, drawing, or the working of mathematical problems can be done with chalk or crayons. It is much used in schools.

air brush alabaster art paper ballpoint pen besnow blackboard blanch blaze blaze a trail bleach blemish blotch book brand brush calcimine calendar camera lucida camera obscura canvas cartoon carve catalog chalk up charcoal check check in check off chronicle cicatrize color copy crayon crosshatch cut dapple dash dash off daub define delimit delineate demarcate depict design diagram discolor docket doodle dot draft draw drawing paper drawing pencil drier driven snow easel engrave enroll enscroll enter eraser etiolate file fill out fixative fleck fleece flour foam freckle frost gash grave grizzle ground hatch impanel impress imprint incise index ink inkhorn inkstand inkwell inscribe insert invisible ink ivory jot down lay figure lead pencil lily limn line list log maggot make a mark make a memorandum make a note make an entry make out mark mark down mark off mark out matriculate maulstick medium milk minute mottle nib nick notch note note down paint paint a picture paintbrush palette palette knife paper pastel pearl pen pencil pepper picture picturize pigments pipe-clay place upon record plume point poll portray post post up prick print punch punctuate puncture put down put in writing put on paper put on tape quill record reduce to writing reed register riddle scar scarify score scotch scratch scratchboard scumble seal seam set down shade sheet siccative silver sketch sketchbook sketchpad slate snow spatula speck speckle splotch spot spray gun stain stamp stencil stigmatize streak striate stripe stump style stylograph stylus swan sympathetic ink table tablet tabulate take down tape tape-record tattoo tick tick off tint trace underline underscore varnish videotape white whiten whitewash write write down write in write out write up